Scratch

markyparky56 wrote:

ProgrammingFreak wrote:

Lets see:
[-(-2)] + 4|-1 - 3|

1. [-(-2)]   This reverses (negative to positive, vice versa) the number to 2
2. 4|(-1) - 3|    This says that -1 minus 3 to the positive amount, multiplied by 4. Which is 8.
3. 2 + 8 = 10

Thats what I get.... 

Why do you use wierd seperators?

( - (-2) ) + 4( (-1)-3)
minus minus 2 equals 2, + 4(-1 - 3), takes it out the brackets, so -4 - 3 which equals -7, I get -5.

The "weird separators" are actually a symbol for absolute value    It means the distance it is from zero. It's always a positive number 

samurai768 wrote:

markyparky56 wrote:

ProgrammingFreak wrote:

Lets see:
[-(-2)] + 4|-1 - 3|

1. [-(-2)]   This reverses (negative to positive, vice versa) the number to 2
2. 4|(-1) - 3|    This says that -1 minus 3 to the positive amount, multiplied by 4. Which is 8.
3. 2 + 8 = 10

Thats what I get.... 

Why do you use wierd seperators?

( - (-2) ) + 4( (-1)-3)
minus minus 2 equals 2, + 4(-1 - 3), takes it out the brackets, so -4 - 3 which equals -7, I get -5.

The "weird separators" are actually a symbol for absolute value    It means the distance it is from zero. It's always a positive number 

1. This is why it helps to provide a question in the context it's given.
2. Why have I never used them before?

veggieman001 wrote:

markyparky56 wrote:

samurai768 wrote:

The "weird separators" are actually a symbol for absolute value    It means the distance it is from zero. It's always a positive number 

1. This is why it helps to provide a question in the context it's given.
2. Why have I never used them before?

weird
who bloody knows
maybe the education system is messed up

Different education systems, and mind your language, this is an all age forum.

markyparky56 wrote:

samurai768 wrote:

markyparky56 wrote:

Why do you use wierd seperators?

( - (-2) ) + 4( (-1)-3)
minus minus 2 equals 2, + 4(-1 - 3), takes it out the brackets, so -4 - 3 which equals -7, I get -5.

The "weird separators" are actually a symbol for absolute value    It means the distance it is from zero. It's always a positive number 

1. This is why it helps to provide a question in the context it's given.
2. Why have I never used them before?

1. Yup
2. No idea.
They're quite easy. If you have |2|, you know 2 is two  away from zero.
So, |2| = 2.
Knowing that, what's |135|?

ProgrammingFreak wrote:

Lets see:
[-(-2)] + 4|(-1) - 3|

1. [-(-2)]   This reverses (negative to positive, vice versa) the number to 2
2. 4|(-1) - 3|    This says that -1 minus 3 to the positive amount, multiplied by 4. Which is 8.
3. 2 + 8 = 10

Thats what I get.... 

Well then, lets look at this more in depth, oh and you forgot a step.

[ and ( are just different kinds of separations in an equation.

[-(-2)]+4|(-1)-3|
2+4|(-1)-3|             A negative negative is positive
2+4|-4|                  Solve the inside of the absolute value
2+4|4|                    The absolute value of -4 is 4
2+16                       The 4 and |4| are next to each other, therefore, we multiply
18                           Simple addition

littletonkslover wrote:

math sucks


math sucks a lot


got a -D on my last test, now i have to waste my time to retake it

Maybe the thing that sucks is not math.

BtW, it's a D-, not a -D. Also, you're lucky that you even get the opportunity to retake things!

Last edited by randomnumber53 (2011-09-28 20:39:16)

6th grade, multiplying decimals.

laptop97 wrote:

Wickimen wrote:

ProgrammingFreak wrote:

Example:
[-(-2)] + 4|(-1) - 3|

I don't know I'll probably get it wrong... I'll give it a shot...
Two negatives make a positive, thus...
2 + 4 |(-1) - 3|
2 plus 4 is 6
6 |(-1) - 3|
I think -1 - 3 is -4?
6|-4|
Absolute value of -4 is 4
6(4) = 24
Did I do it right? I got a different answer than 10
So probably no

Order of Operations
( )
       __
^  \/        (The 2nd one is a Square Root)
* /
+ -

So you don't do 2+4 first, you do 2 + 4 last (By then 4 will be 16)

aka pemdas

4lover wrote:

laptop97 wrote:

Wickimen wrote:

I don't know I'll probably get it wrong... I'll give it a shot...
Two negatives make a positive, thus...
2 + 4 |(-1) - 3|
2 plus 4 is 6
6 |(-1) - 3|
I think -1 - 3 is -4?
6|-4|
Absolute value of -4 is 4
6(4) = 24
Did I do it right? I got a different answer than 10
So probably no

Order of Operations
( )
       __
^  \/        (The 2nd one is a Square Root)
* /
+ -

So you don't do 2+4 first, you do 2 + 4 last (By then 4 will be 16)

aka pemdas

Oh yeah xD
Wow I'm a n00b

oh i used the wrong symbols.

darn.

IDK, I go to a private school and we don't have grades & report cards (just written evaluations) so I have NO idea what our course is called...

But yah, stuff similar to what you're doing, PF.

I feel like Algebra brakes all the rules I've learned in the past. -_-